“I’m so nervous,” Selena told MTV about taking the stage. “I think it’s really cool, ’cause I got to take a year off of music and really be a part of great movies and work with great people, so I thought it would be perfect that I kind of go into music again through MTV and then the Movie Awards. So I thought it would be appropriate. I’m so stoked!”

Also pictured inside: Selena keeping a low profile as she leaves a vintage clothing store after shopping with pals on Tuesday (March 26) in Venice, Calif.